£131 Find Cheap Flights from Dallas to Seattle – Compare and Save

Among airlines operating Dallas/Fort Worth Airport to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Dallas/Fort Worth Airport and Seattle. The airlines offering direct flights on this route include:

• American Airlines
• Alaska Airlines
• Delta

Flights from Dallas/Fort Worth Airport to Seattle usually depart from Dallas/Fort Worth (DFW) and arrive at Seattle/Tacoma Intl (SEA).

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy class
• American Airlines: a cabin bag and a checked bag in Economy class
• Delta: a cabin bag and a checked bag in First Class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy class is available on flights from Dallas/Fort Worth Airport to Seattle.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £189 return via Los Angeles Los Angeles (LAX), compared with £288 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines and Southwest. Other aircraft seen on the route include Airbus A321-100/200 variants.

One-stop flights from Dallas/Fort Worth Airport to Seattle most commonly connect through:

• Denver Intl (DEN) – 79% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 14% of one-stop connections
• Houston George Bush Intcntl (IAH) – 2% of one-stop connections
• Ontario (ONT) – 2% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 7% on the Dallas/Fort Worth Airport to Seattle route. Monday is the cheapest departure day at £276 return on average, while Sunday is the most expensive at £296, a difference of £19. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Dallas/Fort Worth Airport to Seattle route, 18% of flights were delayed in the past 3 months, with delays averaging 2 hours 26 minutes.

Morning is the busiest departure period on Dallas/Fort Worth Airport to Seattle flights, with 41% leaving in that window. Evening departures account for 33%, Afternoon flights for 20%, and Night flights for 6%.

Some of the most popular sights in Seattle are Pier 66, The Westin Seattle, and Seattle Center. These are among the most viewed places in Seattle on KAYAK.

These are the earliest and latest flight times available from Dallas/Fort Worth Airport to Seattle:

• Earliest: departs at 06:00 and lands at 10:28
• Latest: departs at 21:50 and lands at 02:18.

The flight takes about 4h 28m.

Last-minute fares on this route (booked within 2 weeks of departure) run 19% above the route average of £281. Book 5 weeks before departure for the lowest fares.

A direct flight from Dallas/Fort Worth Airport to Seattle takes 4h 28m, covering 1,657 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £212 to £947. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Dallas/Fort Worth Airport to Seattle are currently lower than usual. Average one-way flight prices are about £144, which is 15% below the typical average for this route.

Frontier is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Dallas/Fort Worth Airport to Seattle flights are:

• Frontier: 88% on time
• Delta: 87% on time
• Alaska Airlines: 86% on time

On average, flights on this route are punctual 82% of the time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time of 7h 14m, compared to 9h 50m via Denver Intl (DEN) and 11h 01m via Salt Lake City (SLC).

Seattle is 2 hours behind Dallas/Fort Worth Airport (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar

Return flights from Dallas/Fort Worth Airport to Seattle range from £212 to £344, with an average of £281 over the past 12 months. Anything below £212 counts as a good deal.

Four airlines offer in-flight Wi-Fi on Dallas/Fort Worth Airport to Seattle flights:

• • Alaska Airlines
• • American Airlines
• • Delta
• • JetBlue